Time-controlled damper.



PATENTED N0v.i5, 1907.

THENoRms PETER: ca, WAsmNcroN. n. c.

UNITE STATES SILAS BROWNELL BROWN, OF CINCINNATI, OHIO.

TIME-CONTROLLED DAMPER.

Specification of Letters Patent.

Patented Nov. 5, 1907.

Application filed January 8. 1906. Serial No. 295.084. Renewed August 30 1907. Serial No. 390,825.

To all whom it `may concern:

Be it known that 1, Sims BROWNELL BROWN, a citizen of the United States, residing at Cincinnati, in the county oi Hamilton and State of Ohio, have invented certain new and useful Improvements in Time-Controlled Damper-s, of which the following is a specification.

My invention relates to a time actuated damper setting mechanism.

One of the objects oi the invention is to combine a time releasing and a damper setting mechanism into a simple unitary device which can be conveniently lo-` cated in any desired part oi the house, and which can readily be attached to the base board oi the wall or other vsuitable place.

Another object of the invention is to provide a damper setting mechanism which can be adjusted to any selected position independent oi the tripping mechanism but in such relation thereto as to be tripped at the appointed time from any selected position in its range of adjustment.

Various other objects and features oi the invention are more fully set iorth in the description of the accompanying drawings7 forming a part of this specification, in which Figure 1 is a iront elevation of mydevice. Fig. 2 is a rear elevation showing the time releasing portion of the device. Fig. 3 is a section on line fc, fr, Fig. 1. Fig. 4 is a section on line w, w, Fig. 3. Fig. 5 is a detailed view oi the sheaves over which the damper chain passes.

1 represents the bracket to which the time releasing and damper setting devices areattached, this bracket being adapted to be secured in a convenient location. The time releasing mechanism is substantially the same as that shown, described and claimed in my former application on time controlled dampers, iiled January 30, 1905, Serial #243,263, and I will therefore only describe so much of it as will serve to illustrate its cooperative iunctions relative to the other parts of the device of my present application.

2 represents the clock, on the rear oi which is a ratchet wheel 3 controlled by time actuated releasing mechanism within the clock. 4 represents a lever pivoted to the bracket 1, having a pawl 5 on its heavier end. adapted to automatically engage into the ratchet wheel 6 represents the lighter end of the lever which is trigger like in shape. This much oi the device will be styled the time actuating releasing mechanism.

7 represents the member to be released, which is of hook shape adapted to be bodily suspended over the trigger end 6 ot' lever 4.

In my present invention instead oi attaching the damper chain directly to this member 7, I provide a spring control lor said member so that it shall be raised to its position oi support on the clock releasing mechanism against the tension of the spring, whereby when released it will be retracted to the position shown in Fig. 1. I then provide a tripping mechanism connected to and operated by this spring controlled releasable member 7. I next provide a damper mechanism which has a range oi adjustment within the path of movement of the tripping mechanism, but which may be freely adjusted whenever the me'mber 7 is suspended over the clock releasing hook 6 or over a rigid supporting hook 8 on the bracket 1.

lhe tripping mechanism consists of a rotary trip 9, the front view of which is shown in Fig. 1, and the rear or inside view oi which is `shown in Fig. 4.

10 represents a tube-like guide way upon .the upper end oi which seats the member 7.

11 represents a sheave journaled at the lower end of thetube 1o.

12 represents a cable one end of which is attached to a lug 13 on the periphery of the trip 9, the said cable passes around the trip 9 within a peripheral groove, and over the sheave 11, its other end being attached to the member 7.

14 represents a plate laterally extended from the bracket 1, having a bearing 15 projected therefrom, upon which the rotary damper setting member 16 journals, see Fig. 3.

17 represents a plate having a hub 18.

The rotary trip 9 is mounted concentrically with the damper setting member 16, being secured to the plate 14 by journal bolt19, see Fig. 8. The trip 9 has'an inwardly extending peripheral flange 20, over-hanging the hub 18 forming between them a chamber as it were within which lies the coil spring 21, the outer end of which is secured to the periphery of the trip 9 and the inner end o which is secured to the fixed hub 18, see Figs. 3 and 4, so that when the hook 7 is raised to engage either the supports 6 or 8, the trip 9 will turn on its center, imparting a strain to the spring 21, which strain will return the trip to initial position when the member 7 is released by the time release.

The tube 10 is formed with a bumper 22 on one side.

23 represents a tripping lug on the periphery or' the member 9, which lug hits against and rests upon the bumper 22 when the trip is actuated.

The damper setting member 16 is substantially a sheave having a grooved periphery within which is iixed the damper controlling cable 24, so as to be rotated therewith in either direction. The sheave 16 is of greater' diameter than the tripping sheave 9 and has a rotary guide way formed within the plate 14.

25 represents a handle extending outwardly from the periphery of the sheave 16 and projecting to the front of the device for setting the damper, and in position to be intercepted by the tripping lug 23 when member 7 is released and moved therewith to the position shown in Fig. 4.

I prefer that one end oi the cable 24, the end marked W, in Fig. l be attached to the check valve in the furnace flue, While the end marked (l, be attached to the damper flap in the furnace door, so that when one is opened the other will be closed.

In operation the member 7 is raised and supported over the hook 6, the lug 23 being moved to the extreme right of the position shown in Fig. l. The handle 25 can then be rotated freely, the adjustment to the right checks down the furnace, while adjustment to the lett starts up the furnace, so that when the handle 25 rests upon the bumper 22 the various damper adjustments are set to obtain the full heating el'iciency of the urnace. As the handle 25 and the tripping lug 23 have the same arc of movement it follows that in whatever position the handle 25 is placed it will be intercepted by the lug 23 when the member 7 is released and moved therewith to position against the bumper 22, as shown in Fig. 4, automatically setting the dampers at a predetermined time to produce the fullest heating efficiency.

It will be observed that the clock and the lever mechanism 4, 5, 6, constitute a time releasing mech'- anism. The hook 7, cable l2, and spring actuated trip 9, constitute together a tension controlled mechanism, the function of which is to be released by the clock mechanism, so that its trip 23 will engage thek damper setting device 25, in any adjusted position, and always move it to a given position. These devices so arranged make a very simple and ei'licient furnace regulator, in which the damper setting mechanf ism canbe adjusted entirely independently. Having described my invention, I claim:-

l. In a device of the class described, a time releasing mechanism, a tension controlled member to be released having a tripping member, and a damper setting mechanism having no positive connection with the member to be released, and adapted to be independently manipulated, but also adapted to be engaged and operated by the trip at the appointed time. i

2. In a device ot' the class described, a timereleasing mechanism, a tension controlled member to be released adapted to be bodily suspended on the time releasing mechanism, a trip connected to and controlled by the member to he released, and a damper setting mechanism adapted to be engaged-and operated by the trip, substantially as described.

'3. In a device of the class described, a time releasing mechanism, a tension controlled member to be released having a tripping member, and a damper setting mechanA ismhaving a member adapted to be selectively set in the path of travel of the trip, substantially as described.

4. In a device of the class described, a time releasing mechanism, a member to be released, a rotary spring actuated trip connected to the member to be released, a rotary damper setting mechanism, the said rotary elements being concentrically journaled, and having projections in their coincident path of travel, substantially as described.

5. In a device of the class described, a time releasing mechanism, a member to be released, a swiveled spring controlled trip attached to the member to be released, so as to contract the spring when set, a lug on the periphery of the trip, an abutment against which the lug strikes rwhen the spring is contracted, and a dalnper setting mechanism having a member adjustable in the path of travel of the tripping lug, substantially as described.

G. In a device of the class described, a time releasing mechanism, a member to be released, adapted to be suspended upon a portion of the time releasing mechanism, a

rotary member having a-peripheral tripping lug, a sta tionary abutment adapted to be engaged by said lug, a spring adapted to force said lug normally towards said abutment, a cable connecting the rotary element with the member to be released, and a damper setting mechanism `having a member adjustable in the path of travel ofvsaid lug, substantially as described.

7. In a device of the class described, a time releasing mechanism, a member to be released, adapted to be suspended upon a portion of the time releasing,- mechanism, a

rotary member having a peripheral tripping lug, a stationary-abutment adapted to be engaged by said lug, a

spring adapted to force said lug normally towards said abutment, a cable connecting the rotary element with the member to be released-a second rotary member concentrically journaled relative to the first named rotary member, a damper cable engaging said second rotary member, and a peripheral lug projected from said second rotary member into the path of movement of said tripping lug, substantially as described.

In testimony whereof, I have hereunto set my band.

SILAS BROWNELL BROWN.

Witnesses Y OLIVER B. .Karsma Lno ODoNNnLL. 

